WO2019045211A1 - Dishwasher - Google Patents

Abstract

A dishwasher having a structure of improved use convenience is disclosed. The dishwasher comprises: a tub having a front opening and an upper opening; a front door arranged so as to open and close the front opening; a cover frame arranged in the upper opening, and having an opening opened in a vertical direction; an upper door arranged so as to open and close the opening of the cover frame; and a frame spray device arranged in the cover frame such that wash water is sprayed on one side of the cover frame.

Description

dish washer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher, and more particularly, to a dishwasher having a structure with improved usability.

The dishwasher is a device that automatically cleans food waste from dishes using detergent and washing water.

In one example, the dishwasher includes a main body having a front opening and having a tub disposed therein, a door provided on the main body to open and close the front opening, a basket provided to receive the dish, And the like. In such a dishwasher having a front loading type, food wastes or the like adhered to the dishes may fall on the installation surface of the dishwasher during the loading of the dishes into the basket.

As another example, the dishwasher includes a main body having an upper surface opening and having a tub disposed therein, a door provided on the main body to open and close the upper surface opening, a basket provided to receive the dish, And the like. In such a top loading type dishwasher, it may be difficult to load a dishware having a certain size or more due to interference between the upper space of the tub and the door.

Therefore, there is a great expectation for a new type of dishwasher that has improved the problems of the front loading type dishwasher and the top loading type dishwasher.

One aspect of the present invention provides a dishwasher having an improved structure capable of front loading and top loading of a tableware.

Another aspect of the present invention provides a dishwasher having an improved structure to prevent contamination that may occur in a frame supporting the upper door.

A dishwasher according to an embodiment of the present invention includes a tub having a front opening and an upper opening, a front door configured to open and close the front opening, a cover frame disposed in the upper opening and having an opening vertically opened, And an upper door provided to open and close the opening of the cover frame, and a frame injector arranged in the cover frame to inject wash water from one side of the cover frame.

Further, the cover frame further includes a seat portion facing the lower surface of the upper door when the upper door is closed, and the frame ejection device is disposed on the seat portion to remove foreign substances on the seat portion.

Further comprising a door hinge disposed in the seating portion such that the upper door is rotatably coupled to the cover frame, wherein the frame ejector is disposed outside the hinge member with respect to the center of the tub on the seating portion .

Further, the frame injection device is provided to inject wash water toward the door hinge.

The upper door includes a sealing member provided on a lower surface of the upper door so as to be in contact with the seat portion when the upper door is closed, and the frame injector is disposed outside the sealing member with respect to the center of the tub .

The upper door includes a sealing member provided on a lower surface of the upper door so as to be in contact with the seat when the upper door is closed, and the frame injector is disposed inside the sealing member with respect to the center of the tub .

Further, the apparatus further includes a simple tray disposed on the inner wall of the cover frame, and the frame ejecting apparatus is provided to be ejected toward the simple tray.

The apparatus further includes a simple tray disposed on an inner wall of the cover frame and an auxiliary frame injection device disposed on the cover frame and adapted to be sprayed toward the simple tray.

In addition, the seat portion includes a water collecting region provided at a relatively low height with respect to the vertical direction so that the washing water sprayed from the frame spraying apparatus is collected at one side of the seat portion.

Further, the cover frame further includes a drain hole for draining wash water collected on the cover frame.

The cover frame includes a seating part facing the lower surface of the upper door when the upper door is closed, a lower inner wall extending from the inner end of the seating part toward the tub, and a washing water draining from the drain hole, And a connecting hose connecting the drain hole and the inlet hole.

And a connecting member for connecting the upper end of the tub to the cover frame, wherein the connecting member penetrates the connecting hose to connect the drain hole and the inlet hole.

Also, the connection hose includes a U-shaped U-shaped area formed to be lower than the inflow hole in the vertical direction.

And the drain hole is disposed in the seating portion.

In addition, the seat portion includes a collecting area provided at a relatively low height with respect to the vertical direction so that the washing water injected from the frame injecting apparatus is collected toward the drain hole side.

A dishwasher according to the present invention includes a tub having a front opening and an upper opening, a front door configured to open and close the front opening, a cover frame having an opening vertically opened and disposed in the upper opening, Wherein the cover frame includes a seat portion facing the lower surface of the upper door when the upper door is closed, and a seat portion disposed on the outer side of the cover frame, A lower inner wall extending from the inner end of the seat portion to the tub side; an inflow hole disposed in the lower inner wall so that wash water drained from the drain hole flows into the tub; And a connecting hose connecting the inlet holes.

The cover frame also includes a frame injector disposed on the seat and to which wash water is injected.

The upper door includes a sealing member provided on a lower surface of the upper door so as to contact the seating portion when the upper door is closed, and the frame ejector is disposed outside the sealing member with respect to the center of the tub .

The cover frame further includes an upper inner wall extending from an outer end of the seating portion toward the upper door, wherein the drain hole is formed with a plurality of through holes for discharging wash water collected between the sealing member and the upper inner wall, And is disposed outside the sealing member.

The dishwasher according to the present invention is installed in a built-in system in a system kitchen including a cabinet having a storage space and a counter disposed on the cabinet so as to have an opening, A tub having a front opening and a front door configured to open and close a front opening of the tub; a cover frame disposed at an upper portion of the tub and attached to the opening; an upper door configured to open and close the opening; The cover frame is provided with a first cleaning space and a second cleaning space formed by the upper part of the first cleaning space and defined by the cover frame, and a cover frame for spraying wash water onto at least one of the second cleaning space or the cover frame. And a frame injecting device disposed therein.

By implementing a dishwasher having a front door and an upper door, both the front loading and the top loading of the tableware are possible. And a frame ejecting device including a cover frame on which an upper door and an upper door are mounted for loading the top of the frame, the frame ejecting device being configured to allow the foreign substance on the frame to flow to the tub side, thereby effectively preventing contamination of the cover frame.

1 shows a system kitchen in which a dishwasher according to an embodiment of the present invention is installed in a built-in manner

Fig. 2 is a view showing a state in which the front door and the upper door of the dishwasher are opened in the system kitchen of Fig. 1

FIG. 3 is a cross-sectional view of the system kitchen of FIG. 1 cut into C-C '

4 is an exploded perspective view of a dishwasher according to an embodiment of the present invention.

FIG. 5 is a perspective view illustrating a cover frame and a frame injection device of a dishwasher according to an embodiment of the present invention. FIG.

6 is a plan view showing a cover frame, an upper door hinge and a frame injection device of the dishwasher according to the embodiment of the present invention.

7 is a plan view showing a cover frame, an upper door hinge and a frame injection device of a dishwasher according to another embodiment of the present invention.

8 is a side sectional view of an enlarged portion of a dishwasher according to an embodiment of the present invention

9 is a side sectional view of an enlarged portion of a dishwasher according to another embodiment of the present invention

10 is a perspective view illustrating a cover frame and a frame injection device of a dishwasher according to another embodiment of the present invention.

11 is a perspective view illustrating a cover frame, a simple tray, a frame injection device, and an auxiliary frame injection device of a dishwasher according to another embodiment of the present invention.

12 is a perspective view illustrating a cover frame, a simple tray, and a frame injection device of a dishwasher according to another embodiment of the present invention.

13 is a perspective view of a dishwasher according to another embodiment of the present invention.

14 is a cross-sectional view of the dish washer of Fig. 13 taken along line I-I '

15 is an exploded perspective view of a dishwasher according to another embodiment of the present invention.

16 is a plan view showing a cover frame and a frame injection device of a dishwasher according to another embodiment of the present invention.

17 is a perspective view showing a cover frame, a frame injection device, and a simple tray of the dish washer according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The term "front end", "rear end", "upper", "lower", "upper" and "lower end" used in the following description are defined with reference to the drawings, And the position is not limited.

FIG. 1 is a view showing a system kitchen in which a dishwasher according to an embodiment of the present invention is installed in a built-in manner, FIG. 2 is a side view of the system kitchen of FIG. 1, In which the door is opened. Hereinafter, " X " represents the front-rear direction of the system kitchen 1, " Y " represents the left-right direction of the system kitchen 1, and " Z " The lateral direction of the system kitchen 1 may be referred to as the width direction of the system kitchen 1. The up and down direction of the system kitchen 1 may be referred to as the height direction of the system kitchen 1. The front-back direction, the left-right direction and the up-down direction of the system kitchen 1 may be referred to as the front-back direction, the left-right direction and the up-down direction of the dishwasher 100, respectively.

1 and 2, a system kitchen 1 may include a cabinet 20 having a compartment 22 and a counter 10 disposed on the cabinet 20 have. The counter 10 may have a flat plate shape. The counter 10 may be referred to as a " countertop ". An opening 11 may be formed in the counter 10.

The cabinet 20 may be provided with a storage space 22 in which various kitchen appliances can be stored. The storage space 22 can be opened and closed by the cabinet door 21. [ As an example, the cabinet door 21 may be rotatably provided.

The cabinet 20 may include a partition (not shown) disposed inside the cabinet 20 to partition the compartment 22. In one example, the partition may extend in the height direction Z of the system kitchen 1 so as to partition the storage space 22 into a plurality of spaces.

The system kitchen 1 may further include a sink 30 provided to clean the tableware or to clean the food or the like. The sink 30 may be provided on one side of the counter 10. The sink 30 may include a sink bowl 31 installed in the counter 10 to wash dishes, food, and the like. The sink ball 31 may be provided with a drain hole (not shown) so that the water supplied to the sink ball 31 can be drained. The sink 30 may further include a water pipe 33 installed adjacent to the sink ball 31 to supply water to the sink ball 31. [ A faucet 34 may be coupled to one end of the water pipe 33. The water supplied from the faucet 34 to the sink ball 31 can be drained through a drain hole and a drain pipe (not shown) connected to the drain hole.

The system kitchen 1 may further include a dishwasher 100 installed in the system kitchen 1 in a built-in manner.

The dishwasher 100 may include a plurality of doors 120 and 130 for the convenience of the user. Specifically, the dishwasher 100 includes an upper door 120 provided to enable top loading of the tableware, and a front door 130 provided to allow front loading of the tableware . The upper door 120 and the front door 130 may be rotatably installed. However, the installation of the upper door 120 and the front door 130 is not limited to the above embodiment, and various modifications are possible. As an example, the upper door 120 and the front door 130 may be installed to be opened or closed in a sliding manner. As another example, one of the upper door 120 and the front door 130 may be opened or closed in a sliding manner, and the other of the upper door 120 and the front door 130 may be opened It may be installed to be closed. Hereinafter, the case where the upper door 120 and the front door 130 are rotatably installed will be mainly described. The upper door 120 may be rotatably installed on the cover frame 150. The front door 130 may be rotatably installed on the tub 110.

The front door 130 is provided with a detergent supply device 141 including at least one of a detergent box 141 for supplying detergent to the inside of the tub 110 and a rinsing box 142 for supplying rinse to the inside of the tub 110 140 may be provided.

The front door 130 may be provided with a display unit 131 for displaying the operating state of the dishwasher 100. Specifically, the display unit 131 may be provided on the front side of the front door 130. The display unit 131 may be implemented as a touch screen structure so that a user can input commands.

An operation unit 132 may be provided on the front door 130. In one example, the operating portion 132 may include a power button or the like of the dishwasher 100. The operation unit 132 may be provided on one side of the display unit 131. [

Preferably, at least one of the display unit 131 and the operation unit 132 may be provided on the front door 130.

The dishwasher 100 may further include a tub 110. The tub 110 may include a front opening 111 that can be opened and closed by the front door 130. Preferably, the front opening 111 may be larger than the opening 11 formed in the counter 10. The tub 110 may further include an upper opening 112 (see FIG. 4) provided to correspond to the opening 11 formed in the counter 10. A cover frame 150 to be described later is disposed on the upper side of the upper opening 112 and finally the upper opening 112 can be opened and closed by the upper door 120.

The dishwasher 100 may further include a cover frame 150. The cover frame 150 can be mounted to the opening 11. [ The upper door 120 may be installed on the cover frame 150. The cover frame 150 can be mounted on the opening 11 while a part of the cover frame 150 is spread over the counter 10 around the opening 11. [ That is, the cover frame 150 may include a bent portion 156 formed at one end to be placed on the counter 10. [ The bent portion 156 of the cover frame 150 can be exposed to the outside. The width w1 of the cover frame 150 exposed to the outside may be larger than the width w2 of the opening 11 formed in the counter 10. [ The width w1 of the cover frame 150 and the width w2 of the opening 11 are measured based on the width direction Y of the system kitchen 1. The cover frame 150 can be mounted on the opening 11 with the bent portion 156 of the cover frame 150 being supported by the counter 10. [

The cover frame 150 may include a frame opening 159 that opens in the up and down direction (see FIG. 4). The user can press the opening 11 of the counter 10, the frame opening 159, The dish can be taken out to the upper side of the tub 110 through the upper opening 112.

The dishwasher 100 may include a washing space 320 defined by the tub 110 and the inner space of the cover frame 150. The cleaning space 320 may include a first cleaning space 330 formed in the tub 110 and a second cleaning space 340 formed in the upper portion of the first cleaning space 330.

The second cleaning space 340 may be formed between the upper door 120 and the tub 110. The second cleaning space 340 may be defined by the cover frame 150. Specifically, the second cleaning space 340 may be defined by the second wall 153 of the cover frame 150. More specifically, the second cleaning space 340 can be defined by the upper door 120, the second wall 153 of the cover frame 150, the connecting member 170, and the tub 110.

The dishwasher 100 may further include at least one basket 161 and 162 disposed inside the tub 110 to be drawn out through the front opening 111. [ At least one of the baskets 161,162 may be referred to as a " front loading basket ". The dishwasher 100 includes an upper basket 161 disposed on the upper portion of the tub 110 in the vertical direction Z of the dishwasher and a lower basket 161 disposed in the upper and lower directions Z of the dishwasher, And a lower basket 162 disposed at a lower portion thereof.

The front door 130 of the dishwasher 100 may form an appearance of the system kitchen 1. Specifically, the front door 130 of the dishwasher 100 can form the front surface of the system kitchen 1 together with the cabinet door 21.

The upper end of the front door 130 and the upper end of the cabinet door 21 may be located on a reference line R extending in the width direction Y of the system kitchen 1. The reference line R may be a hypothetical line extending in the width direction Y of the system kitchen 1 so as to be parallel to the counter 10. In this manner, by designing the upper end of the front door 130 and the upper end of the cabinet door 21 to be positioned in a straight line, it is possible to implement a clean image system kitchen 1 having a unified feel as a whole.

The lower end of the front door 130 and the lower end of the cabinet door 21 may also be located on a reference line R 'extending in the width direction Y of the system kitchen 1. The reference line R 'may be a hypothetical line extending in the width direction Y of the system kitchen 1 so as to be parallel to the counter 10. That is, the reference line R 'may be parallel to the reference line R. [

The upper door 120 of the dishwasher 100 may form the appearance of the system kitchen 1. Specifically, the upper door 120 of the dishwasher 100 may form an upper surface appearance of the system kitchen 1 together with the counter 10. The upper door 120 may be provided so that the level difference from the counter 10 in the height direction Z of the system kitchen 1 is not large. When the upper door 120 is provided so as to be large in the height direction Z of the system kitchen 1 with respect to the counter 10, that is, when the upper door 120 is excessively projected toward the upper side of the system kitchen 1 If so, ease of use may be reduced. As an example, a user may hit the upper door 120, which is excessively projected toward the upper side of the system kitchen 1.

FIG. 3 is a cross-sectional view of the system kitchen of FIG. 1 cut into C-C ', and FIG. 4 is an exploded perspective view of a dishwasher according to an embodiment of the present invention. 5 is a perspective view illustrating a cover frame and a frame sprayer of a dishwasher according to an embodiment of the present invention. For reference, the front door 130 is omitted in FIG.

3 to 5, the dishwasher 100 includes a tub 110 in which a washing space 330 is formed, a sump 180 provided at a lower portion of the tub 110 to store washing water, . ≪ / RTI >

At least one basket (161, 162) may be disposed inside the tub (110) so as to be movable back and forth in the forward and backward directions (X) of the system kitchen (1). Specifically, the at least one basket 161, 162 is drawn and stored through the front opening 111 of the tub 110 by at least one rack 190 that slidably supports at least one basket 161, 162 .

At least one of the baskets 161 and 162 may be opened at the upper side so as to accommodate the dishes therein. At least one of the baskets 161 and 162 may be formed by a wire 163 arranged in a lattice shape so that the tableware stored therein can be easily cleaned by the washing water. In other words, the at least one basket 161, 162 may be formed of a plurality of wires 163 that intersect each other to receive the tableware therein.

The dishwasher 100 may further include at least one spraying device 210, 220 arranged to spray wash water. At least one of the injectors 210 and 220 includes a first injector 210 positioned between the upper basket 161 and the lower basket 162 and a second injector 220 located below the lower basket 162 ).

The first injecting device 210 and the second injecting device 220 are rotatably installed around a rotating shaft and can rotate and spray washing water.

A heater (not shown) and a heater mounting groove (not shown) may be formed on the tub 110 to heat the washing water. A heater mounting groove may be provided on the bottom of the tub 110, and a heater may be installed on the heater mounting groove.

The sump 180 may be provided at the center of the bottom of the tub 110 to collect the washing water and pump it. The sump 180 may include a washing pump 181 for pumping washing water to a high pressure and a pump motor 182 for driving the washing pump 181.

The cleaning pump 181 pumps the wash water to the first injector 210 via the first supply pipe 260. In addition, the cleaning pump 181 pumps the wash water through the second supply pipe 270 to the second injector 220 located below.

The sump 180 may include a turbidity sensor (not shown) for detecting the degree of contamination of the washing water. A controller (not shown) of the dishwasher 100 can detect the degree of contamination of the washing water using a turbidity sensor (not shown) and control the number of times of washing or rinsing. That is, the washing or rinsing step can be increased when the contamination degree is high, and the washing or rinsing step can be decreased when the contamination degree is low.

The dishwasher 100 may further include a cover frame 150 mounted to the opening 11 of the counter 10. [ The cover frame 150 may be mounted on the opening 11 so as to be spaced apart from the tub 110 in the height direction Z of the system kitchen 1. In other words, the cover frame 150 can be mounted on the opening 11 so as not to overlap with the tub 110 in the height direction Z of the system kitchen 1.

The cover frame 150 may include a frame body 158 and a bend 156 that is bent from the frame body 158 to be supported on the counter 10. The bent portion 156 may be formed at the upper end of the frame body 158 so as to be bent outwardly of the dishwasher 100.

The frame body 158 may include a seating portion 151 to which the upper door 120 is seated. The upper door hinge 290 including the hinge shaft 291 and the hinge mounting portion 292 may be mounted on the seating portion 151 of the frame body 158. [ The door hinge 290 is coupled to one side of the upper door 120 and the upper door 120 can be mounted on the seating part 151 as the hinge mounting part 292 is mounted on the seating part 151. The upper door 120 may be coupled to the upper door hinge 290 so as to be rotatable about the hinge shaft 291. The hinge shaft 291 of the upper door hinge 290 may extend in the width direction Y of the system kitchen 1.

The frame body 158 may further include a first wall 152 extending from the seating portion 151 in the height direction Z of the system kitchen 1. Specifically, the first wall 152 may extend in the height direction Z of the system kitchen 1 from the outside end of the seating portion 151 toward the upper side of the system kitchen 1. The seating portion 151 may face the bottom surface of the upper door 120 and the first wall 152 may face the side surface of the upper door 120. In other respects, the seating portion 151 and the first wall 152 may define an upper door receiving space in which the upper door 120 is received.

The frame body 158 may further include a second wall 153 extending from the seating portion 151 in the height direction Z of the system kitchen 1. [ Specifically, the second wall 153 may extend in the height direction Z of the system kitchen 1 from the inner end of the seating portion 151 toward the lower side of the system kitchen 1.

The second wall 153 may extend further in the height direction Z of the system kitchen 1 than the first wall 152. That is, the second wall 153 may have a higher height in the height direction Z of the system kitchen 1 than the first wall 152.

The space defined by the first wall 152 may have a wider width in the width direction Y of the system kitchen 1 than the space defined by the second wall 153. [

The dishwasher 100 may further include a frame sealing member 157. The frame sealing member 157 may be disposed between the cover frame 150 and the counter 10. [ In other words, the frame sealing member 157 may be coupled to at least one of the cover frame 150 and the counter 10. The frame sealing member 157 may be configured such that the external fluid flows into the interior of the dishwasher 100 through the gap between the cover frame 150 and the counter 10 or the washing water inside the tub 110 flows into the cover frame 150 And prevents counterflow of the cover frame 150 and the counter 10 to prevent leakage of the liquid to the outside of the dishwasher 100 through the gap between the counter 10 and the counter 10. The frame sealing member 157 may be formed of an elastic material. As one example, the frame sealing member 157 may be formed of rubber or the like.

The dishwasher 100 may further include an upper door sealing member 121. The upper door sealing member 121 may be coupled to the lower surface 122 of the upper door 120. The upper door sealing member 121 serves to supplement the hermeticity between the cover frame 150 and the upper door 120 to prevent washing water in the tub 110 from leaking to the outside of the upper door 120. The upper door sealing member 121 may be formed of an elastic material. As an example, the upper door sealing member 121 may be formed of rubber or the like.

An upper door sealing member (not shown) disposed on the lower surface 122 of the upper door 120 is disposed so that the lower surface 122 of the upper door 120 faces the seating portion 151 when the upper door 120 is in a closed state, 121 may be in close contact with the seating part 151 to prevent the washing water flowing upward from the tub 110 from flowing out to the outside of the seating part 151.

The dishwasher 100 may further include a housing panel 119. The housing panel 119 may be disposed outside the tub 110. Specifically, the housing panel 119 can be coupled to both side walls of the tub 110, i.e., the left wall and the right wall, respectively.

The dishwasher 100 may further include a tub body 113 and a tub top 114 mounted on the tub body 113. The tub top 114 may be coupled to the upper end of the tub body 113. An upper opening 112 corresponding to the opening 11 of the counter 10 may be formed in the tub top 114.

The tub top 114 may be formed of a material different from that of the tub body 113. As an example, the tub top 114 may be formed of polypropylene (PP), and the tub body 113 may be formed of stainless steel (STS).

The tub top 114 may be provided with a collecting part 115. The collecting part 115 may be formed along the circumference of the tub top 114 to have a predetermined depth. The water collecting part 115 may be formed on the tub top 114 so as to be located outside the connecting member 170 to be described later. If the washing water can not flow into the tub 110 due to incomplete connection or wear of the connecting member 170 and flows along the outer wall of the tub 110, it may cause unsafe and dangerous problems as well as fire. The water collecting part 115 collects washing water which is formed at the upper end of the tub body 113, that is, the tub top 114, and which has not flowed into the tub 110, and guides the washing water to the inside of the tub 110.

The tub top 114 may be provided with a panel fixing portion 116. The housing panel 119 can be coupled to the tub 110 to face both side walls of the tub 110. Specifically, the housing panel 119 can be coupled to the panel fixing portion 116 of the tub top 114 to face both side walls of the tub body 113. The housing panel 119 can be fixed to the panel fixing portion 116 by a coupling member such as a screw.

The dishwasher 100 may further include a connecting member 170. The connecting member 170 may be provided to connect the cover frame 150 and the tub 110. [ Specifically, the connecting member 170 can connect the cover frame 150 and the tub 110 so as to be stretchable in the height direction Z of the system kitchen 1. The connecting member 170 may have an elastic material. As an example, the connecting member 170 may be formed of a material such as rubber. The upper end of the connecting member 170 may be coupled to the cover frame 150 and the lower end of the connecting member 170 may be coupled to the tub 110. In other words, the upper end of the connecting member 170 may be coupled to the cover frame 150, and the lower end of the connecting member 170 may be coupled to the tub top 114.

The dishwasher 100 may further include a front door sealing member 135. The front door sealing member 135 may be coupled to the front door 130. The front door sealing member 135 serves to complement the hermeticity between the tub 110 and the front door 130 to prevent washing water inside the tub 110 from leaking to the outside of the front door 130. The front door sealing member 135 may be formed of an elastic material. As an example, the front door sealing member 135 may be formed of rubber or the like.

The upper door 120 may be provided with communication means for adjusting the operation of the dishwasher 100 depending on whether the upper door 120 is opened or closed. For example, the controller (not shown) of the dishwasher 100 may be electrically connected to a sensor provided on the upper door 120 to detect whether the upper door 120 is open or closed. The control unit may be electrically connected to various electrical components disposed in the lower module.

The cover frame 150 and the upper door 120 of the dishwasher 100 will be referred to as an "upper module" and the cover frame 150, the upper door 120, In order to install the dishwasher 100 to the system kitchen 1 in a built-in manner, the lower module is first installed in the front-rear direction X of the system kitchen 1 To the cabinet 20. Specifically, the lower module is housed in the cabinet 20 in the front-rear direction X of the system kitchen 1, and is fixed to the cabinet 20 with the front thereof opened. Thereafter, the upper module is mounted on the counter 10. Specifically, the cover frame 150 is mounted on the opening 11 of the counter 10, and the upper door 120 is mounted on the cover frame 150. The upper module and the lower module may be connected by a connecting member 170. Specifically, the cover frame 150 of the upper module and the tub 110 of the lower module can be connected by the connecting member 170. [

Hereinafter, the frame injection device 400 disposed in the cover frame 150 will be described in detail.

FIG. 5 is a perspective view illustrating a cover frame and a frame spraying apparatus of a dishwasher according to an embodiment of the present invention, FIG. 6 is a perspective view of a cover frame, an upper door hinge, FIG. 7 is a plan view showing a cover frame, an upper door hinge and a frame injection device of a dishwasher according to another embodiment of the present invention.

As shown in FIG. 5, the dishwasher 100 according to an embodiment of the present invention may include a frame ejector 400 disposed in a cover frame 150.

In the case of the dishwasher 100 installed in the system kitchen 1 in a built-in manner, water generated in the sink 30 or the counter 10 can be introduced into the dishwasher 100 side. The water introduced from the sink 30 or the counter 10 flows into the cover frame 150 disposed on the same height in the vertical direction with the counter 10 and flows along the first wall 152 along the seating portion 151 Lt; / RTI >

As described above, the seating portion 151 is in close contact with the upper door sealing member 121 so as to be in contact with the upper door 120 when the upper door 120 is closed. The water flowing from the outside into the sealing member outer region A on the seating portion 151 located on the outer side of the upper door sealing member 121 with respect to the center of the tub 110 in the seating portion 151 is collected .

The seating portion 151 which is a space formed by the upper door sealing member 121, the first wall 152 and the four side surfaces 124 (see FIG. 2) of the upper door in the seating portion 151, The water externally generated in the outer region A of the sealing member can be collected and collected.

At this time, the water to be collected in the sealing member outer region A may be contaminated water containing foreign matter or the like into the water introduced from the sink 30 or the counter 10. When the contaminated water is collected in the cover frame 150, foreign matter may flow into the cover frame 150 and the cover frame 150 may be contaminated.

On the other hand, when the upper door sealing member 121 is not in close contact with the seating portion 151 so that the space between the upper door sealing member 121 and the seating portion 151 is not sealed, And can flow into the sealing member outer region A through the sealing member 121. [

In the case of the washing water introduced from the tub 110, the washing water may be a washing water containing foreign substances after washing the dishes. Accordingly, when the washing water flowing from the tub 110 is collected in the sealing member outer region A, foreign substances may flow into the cover frame 150 and the cover frame 150 may be contaminated.

Accordingly, the dishwasher 100 according to an embodiment of the present invention may include a frame ejector 400 disposed on the cover frame 150 to remove foreign substances or the like that may flow on the seating portion 151 . The frame injection device 400 can solve not only the above-mentioned problems but also various other problems described later.

The frame injection device 400 may be disposed in the seating part 151 to remove foreign matter introduced into the seating part 151 through injection of washing water. That is, the washing water may be sprayed onto the seating part 151 to allow the foreign substances or the like present on the seating part 151 to flow together with the washing water.

The frame injectors 400 may be arranged in pairs in the seat 151 as shown in FIG. The pair of injectors 400 can inject wash water in the opposite directions. Accordingly, washing water can be injected into the entire space of the seating part 151, so that foreign matter on the seating part 151 can be easily removed. The pair of frame injectors 400 are driven in the same manner, and only one frame injector 400 will be described below.

The frame injector 400 may inject the pumped wash water from the wash pump 181 to the cover frame 150 via an additional feed pipe (not shown). (Not shown) may be branched from the first supply pipe 260 or the second supply pipe 270 to extend to the frame injection device 400. [

The frame injection device 400 may be disposed on the seat member outer side region A on the seat portion 151. [ That is, the frame injection device 400 may be disposed outside the upper door sealing member 121 with respect to the center of the tub 110.

As shown in FIG. 6, the frame injection device 400 may be disposed adjacent to the hinge mount 292, and may be provided to inject wash water toward the hinge mount 292. The hinge mounting portion 292 is mounted to the sealing member outer side region A so as to be coupled with the cover frame 150. The hinge mounting portion 292 protrudes upwardly from the seating portion 151 so that foreign substances are concentrated on the hinge mounting portion 292 side Can be captured. Therefore, the frame injection device 400 may be provided to spray the washing water toward the hinge mounting part 292 so as to easily remove the foreign matter collected on the hinge mounting part 292 side.

As shown in FIG. 7, the frame injection device 400 'is disposed at a position lower than the upper door sealing member 121' with respect to the center of the tub 110, according to another embodiment of the present invention in which the frame injection device 400 is disposed. As shown in Fig.

That is, the frame injection device 400 'has a sealing member inner area B on the seating part 151 positioned inside the upper door sealing member 121' with respect to the center of the tub 110 in the seating part 151, As shown in FIG.

The sealing member inner region B is a region between the inner end of the seating part 151 and a point contacting the upper door sealing member 121 'and water is not introduced from the outside by the upper door sealing member 121' The washing water can be introduced from the tub 110 and the washing water can be collected.

In the case of washing water flowing from the tub 110 as described above, the washing water may be a washing water containing foreign substances after washing the dishware. Accordingly, when the washing water flowing from the tub 110 is collected in the sealing member inner region B, there is a possibility that the foreign substances may flow on the cover frame 150 and the cover frame 150 may be contaminated.

The frame injection device 400 'for injecting the washing water into the sealing member inner region B may be disposed to remove the foreign substances present on the sealing member inner region B as described above. The washing water injected from the frame injecting apparatus 400 'flows along the sealing member inner side region B and flows together with the foreign matter present on the sealing member inner region B to remove the foreign matter from the cover frame 150 have. The washing water injected into the sealing member inner region B may flow into the tub 110 along the second wall 153 together with the foreign matter.

Hereinafter, the technical features of draining the water collected in the sealing member outer region A will be described in detail.

FIG. 8 is a side cross-sectional view of an enlarged portion of a dishwasher according to an embodiment of the present invention, and FIG. 9 is a side cross-sectional view of an enlarged portion of a dishwasher according to another embodiment of the present invention.

As described above, the cover frame 150 according to an embodiment of the present invention allows the water generated in the counter 10 or the sink 30 to flow into the dishwasher 100 and be collected in the outer region A of the sealing member, And a drain hole 410 provided to drain the collected water when the washing water is injected into the sealing member outer region A by the frame injecting apparatus 400. [

9, the water collected in the sealing member outer region A can be drained outwardly from the cover frame 150 through the drain hole 410. [ The drain hole 410 may be connected to the inlet hole 420 through which the water collected inside the tub 110 is introduced through the connection hose 430.

The drain hole 410 may be disposed in the seating portion 151. Specifically, the drain hole 410 can be disposed in the sealing member outer region A on the seating portion 151 to drain the water collected in the sealing member outer region A to the outside of the cover frame 150.

The drain hole 410 may be disposed adjacent to the frame injector 400. However, the present invention is not limited to this, and the drain hole 410 may be disposed on either side of the sealing member outside region A.

The inlet hole 420 may be formed such that the water drained from the drain hole 410 flows into the tub 110. The inflow hole 420 is disposed in a connecting member 170 disposed below the second wall 153 and is connected to the tub 110 disposed below the second wall 153, To the tub 110, as shown in FIG. However, although not shown in the drawing, the inlet hole 420 may be disposed in the second wall 153.

A connection hose 430 is provided between the drain hole 410 and the inlet hole 420 so that the water drained from the drain hole 410 can be transferred to the inlet hole 420. The inlet hole 420 may be provided at one end of the connection hose 430 and may be provided toward the inside of the tub 110.

When the inflow hole 420 is disposed on the second wall 153, the connection hose 430 may pass through the connection member 170 to connect the drain hole 410 and the inflow hole 420.

The inlet holes 420 are not limited to one embodiment of the present invention and may be disposed in the cover frame 150 or other configuration described above.

9, the connection hose 430 'includes a U-shaped region 431' disposed below the inlet hole 420 and provided in a U-shape, . ≪ / RTI >

A part of the washing water present on the tub 110 flows into the inlet hole 420 and is returned through the connection hose 430 and the drain hole 410 to the opposite side of the sealing member 420. In this case, Can be introduced into the outer region (A). The wet steam generated in the tub 110 through the washing stroke flows into the inlet hole 420 and flows into the sealing member outer region A through the connection hose 430 and the drain hole 410, May be contaminated.

The connecting hose 430 'according to another embodiment of the present invention may prevent the water or humid air from entering the sealing member outer region A from the tub 110 including the U-shaped region 431' . That is, the U-shaped region 431 'can collect water or humid air so that the water or humid air introduced from the tub 110 can not reach the drain hole 410. Accordingly, the washing water flowing from the tub 110 through the inflow hole 420 does not reach the sealing member outer region A, so that the contamination of the additional cover frame 150 can be prevented.

Hereinafter, a cover frame 150 'of the dishwasher 100 according to another embodiment of the present invention will be described. Other configurations than the cover frame 150 'described below are similar to those of the cover frame 150 according to the embodiment of the present invention described above, and redundant description will be omitted. 10 is a perspective view illustrating a cover frame and a frame sprayer of a dishwasher according to another embodiment of the present invention.

As shown in FIG. 10, the cover frame 150 'may include a catchment area 154' formed lower than the height of the seating part 151 'in the vertical direction.

The water collecting area 154 'is disposed on the seating part 151', and more specifically, has a gradient which is disposed on the sealing member outer area A and is formed lower than the height of the seating part 151 ' So that the water collected on the outer region A of the sealing member can be concentratedly collected in the catchment area 154 '.

The catchment area 154 'may include an inclined surface 154a' extending downward from the seating portion 151 '. The water collected on the seating portion 151 'may be concentrated on the catchment region 154' along the slope 154a '.

The drain hole 410 may be disposed at a point where the height of the water collecting area 154 'is the lowest. It is possible to easily drain the water collected in the cover frame 150 'by disposing the drain hole 410 in the concentrated water collecting area.

10 may be disposed on the inclined surface 154a ', but the present invention is not limited thereto. The frame injection device 400 may be disposed outside the collecting area 154'. Also, the hinge mounting portion 292 may be disposed on the inclined surface 154a ', but not limited thereto, and the hinge mounting portion 292 may be disposed outside the water collecting area 154'.

10 is disposed on the rear side of the seating part 151 'to which the hinge mounting part 292 is coupled, but the present invention is not limited thereto. The catching area 154' may include a seating part 151 ' It can be placed on either side of the top. However, at this time, the drain hole 410 may be disposed corresponding to one side where the collecting area 154 'is disposed.

Also, although not shown in the drawing, the collecting area 154 'may be formed in a step shape without inclining the inclined surface 154a'.

Hereinafter, the simple tray 450 and the auxiliary frame injection device 440 of the dishwasher 100 according to another embodiment of the present invention will be described. The configurations other than the simple tray 450 and the auxiliary frame injection device 440 described below are similar to the configuration according to the embodiment of the present invention described above, and a duplicate description will be omitted. 11 is a perspective view illustrating a cover frame, a simple tray, a frame injection device, and an auxiliary frame injection device of a dishwasher according to another embodiment of the present invention.

11, the dishwasher 100 according to another embodiment of the present invention includes a simple tray 450 disposed in a second cleaning space 340 defined by an inner area of the cover frame 150, .

The simple tray 450 can be disposed adjacent to the upper door 120 so that the upper door 120 can be opened and the tableware can be loaded. In detail, on one side of the second wall 153 of the cover frame 150.

The small tray 450 may be loaded with a small tableware. The user can load the small tray such as a cup or spoon on the tray 450 for cleaning.

A problem may arise in that a bulky tableware may be separated between the wires 163 of the baskets 161 and 162 when the basket is loaded on the upper basket 161 or the lower basket 162. However, It is possible to solve such a problem and to easily clean a small-sized tableware.

The simple tray 450 can be supported on the second wall 153 as described above and is disposed relatively far from the first injection device 210 or the second injection device 220, (450). Accordingly, the tableware loaded on the simple tray 450 may not be completely cleaned. The dishwasher according to another embodiment of the present invention includes the auxiliary frame injection device 440 to solve such a problem.

The auxiliary frame injector 440 may be disposed on the second wall 153 and may be provided to inject wash water toward the simple tray 450. [ The auxiliary frame injection device 440 can additionally spray washing water to the simple tray 450 to help clean the tableware loaded on the simple tray 450. [

11, the sub frame injection device 440 may be disposed on the other side of the second wall 153 on which the simple tray 450 is supported, but not limited thereto, the sub frame injection device 440 The simple tray 450 may be disposed on one side of the second wall 153 on which the simple tray 450 is supported.

The auxiliary frame injection device 440 can be supplied with the washing water by the supply pipe branched from the additional supply pipe (not shown) for supplying the washing water to the frame injection device 400. Or another additional supply pipe (not shown) directly connected to the cleaning pump 181.

The washing water injected from the auxiliary frame injector 440 may be introduced into the tub 110 and collected in the sump 180.

The simple tray 450 and the frame injection device 400 '' of the dishwasher 100 according to another embodiment of the present invention will now be described. &Quot;) is similar to the configuration according to the embodiment of the present invention described above, and redundant description is omitted. 12 is a perspective view illustrating a cover frame, a simple tray, and a frame injection device of a dishwasher according to another embodiment of the present invention.

12, the dishwasher 100 according to another embodiment of the present invention includes a simple tray 450 disposed in a second cleaning space 340 defined by an inner area of the cover frame 150, . The simple tray 450 can be supported on one side of the second wall 153 of the cover frame 150.

The dishwasher 100 according to another embodiment of the present invention may include a frame ejector 400 '' disposed on the cover frame 150 and arranged to eject wash water toward the tray tray 450.

The frame injector 400 " may be disposed on the second wall 153 and may be provided to inject wash water into the simple tray 450. The frame injector 400 " So that it is possible to assist in washing the tableware loaded on the simple tray 450.

Hereinafter, the dishwasher 100a according to another embodiment of the present invention will be described. The dishwasher may not be installed in a built-in manner in the system kitchen but may be provided in the kitchen itself. This type of dishwasher is defined as a free standing type dishwasher. Hereinafter, a freestanding dishwasher will be mainly described.

FIG. 13 is a view illustrating a dishwasher according to another embodiment of the present invention, FIG. 14 is a sectional view of the dishwasher of FIG. 13 taken along line I-I ', and FIG. FIG. 16 is a plan view showing a cover frame and a frame injection device of a dishwasher according to another embodiment of the present invention. FIG.

Hereinafter, the description of the built-in type dishwasher will be omitted.

As shown in FIGS. 13 to 16, the dishwasher 100a may include a housing 500 that forms an appearance.

The dishwasher 100a may further include a tub 110 in which a washing space 330 is formed. The tub 110 may be disposed inside the housing 500. The tub 110 may include a front opening 111 that can be opened and closed by the front door 130. Preferably, the front opening 111 may be larger than the opening 515 formed in the cover frame 510. The tub 110 may further include an upper surface opening 112 provided to correspond to an opening 515 formed in the cover frame 510.

The dishwasher 100a may further include a plurality of doors 120 and 130 for the convenience of the user. Specifically, the dishwasher 100a includes an upper door 120 provided to allow top loading of the tableware, and a front door 130 provided to allow front loading of the tableware . The upper door 120 and the front door 130 may be rotatably installed. However, the installation of the upper door 120 and the front door 130 is not limited to the above example, and various modifications are possible. Hereinafter, the case where the upper door 120 and the front door 130 are rotatably installed will be mainly described. The upper door 120 may be rotatably installed on the cover frame 510. The front door 130 may be rotatably installed on the tub 110.

The front door 130 is provided with a detergent supply device 141 including at least one of a detergent case 141 for supplying detergent to the inside of the tub 110 and a rinsing case 142 for supplying rinse to the inside of the tub 110 140 may be provided.

The upper door 120 may be provided with a handle 700 to facilitate opening and closing of the upper door 120.

The dishwasher 100a may further include a cover frame 510. The cover frame 510 may be disposed on the top of the tub 110. The upper door 120 may be installed in the cover frame 510.

The cover frame 510 may include a seating portion 511 to which the upper door 120 is seated. Specifically, an upper door hinge 290 including a hinge shaft 291 can be mounted on the seating portion 511 of the cover frame 400. The upper door 120 may be coupled to the upper door hinge 290 so as to be rotatable about the hinge shaft 291. The hinge shaft 291 of the upper door hinge 290 may extend in the left-right direction Y of the dishwasher 100a.

The cover frame 510 may further include a first wall 512 extending from the seating portion 511 in the vertical direction Z of the dishwasher 100a. Specifically, the first wall 512 may extend in the vertical direction Z of the dishwasher 100a from the outer end of the seating portion 511 toward the upper side of the dishwasher 100a. The seating portion 511 may face the bottom surface of the upper door 120 and the first wall 512 may face the side surface of the upper door 120. In other respects, the seating portion 511 and the first wall 512 may define an upper door receiving space in which the upper door 120 is received.

The cover frame 510 may further include a second wall 513 extending from the seating portion 151 in the vertical direction Z of the dishwasher 100a. Specifically, the second wall 513 may extend in the height direction Z of the dishwasher 100a from the inner end of the seating portion 511 toward the bottom of the dishwasher 100a.

The first wall 512 may extend further in the vertical direction Z of the dishwasher 100a than the second wall 513. [ That is, the first wall 512 may have a higher height in the vertical direction Z of the dishwasher 100a than the second wall 513.

The space defined by the first wall 512 may have a wider width in the left and right direction Y of the dishwasher 100a than the space defined by the second wall 513. [

The dishwasher 100a may further include an upper door sealing member 121. The upper door sealing member 121 may be coupled to the upper door 120. The upper door sealing member 121 serves to compensate the airtightness between the upper door 120 and the cover frame 510 to prevent washing water in the tub 110 from leaking to the outside of the upper door 120. The upper door sealing member 121 may be formed of an elastic material. As an example, the upper door sealing member 121 may be formed of rubber or the like.

The dishwasher 100a may further include a connection frame 520 disposed between the tub 110 and the cover frame 510. The connection frame 520 may be disposed between the cover frame 510 and the tub 110 in the vertical direction Z of the dishwasher 100a to connect the cover frame 510 and the tub 110. [

The dishwasher 100a may further include at least one basket 161 and 162 disposed inside the tub 110 to be drawn out through the front opening 111. [ At least one of the baskets 161,162 may be referred to as a " front loading basket ". The dishwasher 100a includes an upper basket 161 disposed on the upper portion of the tub 110 in the vertical direction Z of the dishwasher 100a and a lower basket 162 disposed in the upper and lower directions Z of the dishwasher 100a, And a lower basket 162 disposed at a lower portion of the upper basket 161. The upper basket 161 may be disposed adjacent to the additional basket 170 described below. The description of at least one of the baskets 161 and 162 is omitted since it is the same as that described with reference to FIG. 3 and FIG.

The dishwasher 100a may further include a front door sealing member 135. The front door sealing member 135 may be coupled to the front door 130. The front door sealing member 135 serves to complement the hermeticity between the tub 110 and the front door 130 to prevent the washing water in the tub 110 from leaking to the outside of the front door 130. The front door sealing member 135 may be formed of an elastic material. As an example, the front door sealing member 135 may be formed of rubber or the like.

The front door 130 of the dishwasher 100a may form the front surface of the dishwasher 100a.

The upper door 120 of the dishwasher 100a may form an upper surface appearance of the dishwasher 100a. Specifically, the upper door 120 of the dishwasher 100a may form an upper surface appearance of the dishwasher 100a together with the cover frame 510. [

The dishwasher 100a according to another embodiment of the present invention may include a frame injector 400 'disposed in the cover frame 510. [ The frame injection device 400 'may be disposed inside the upper door sealing member 121 with respect to the center of the tub 110.

In other words, the frame injection device 400 'is disposed in the sealing member inner area B on the seating part 511 located inside the upper door sealing member 121 with respect to the center of the tub 110 in the seating part 511 .

The sealing member inner side region B is a region between the inner end of the seating portion 511 and a point contacting the upper door sealing member 121. Water does not flow from the outside by the upper door sealing member 121, The washing water can be introduced from the washing water tank 110 and the washing water can be collected.

In the case of washing water flowing from the tub 110 as described above, the washing water may be a washing water containing foreign substances after washing the dishware. Accordingly, when the washing water flowing from the tub 110 is collected in the sealing member inner region B, there is a fear that the foreign substance may flow on the cover frame 510 and the cover frame 510 may be contaminated.

The frame injection device 400 'for injecting the washing water into the sealing member inner region B may be disposed to remove the foreign substances present on the sealing member inner region B as described above. The wash water injected from the frame injector 400 'flows along the sealing member inner side region B and flows together with the foreign matter present on the sealing member inside region B so as to remove the foreign matter from the cover frame 510 have. The washing water injected into the sealing member inner region B may flow into the tub 110 along the second wall 513 together with the foreign matter.

The simple tray 450 and the frame injection device 400 '' of the dishwasher 100a according to another embodiment of the present invention will be described below. &Quot;) is similar to the configuration according to the embodiment of the present invention described above, and redundant description is omitted. 17 is a perspective view illustrating a cover frame, a simple tray, and a frame injection device of a dishwasher according to another embodiment of the present invention.

As shown in FIG. 17, the dishwasher 100a according to another embodiment of the present invention may include a simple tray 450 disposed in an inner region of the cover frame 510. The simple tray 450 can be supported on one side of the second wall 513 of the cover frame 510.

The dishwasher 100a according to another embodiment of the present invention may include a frame ejector 400 '' disposed on the cover frame 510 and arranged to eject wash water toward the tray tray 450. [

The frame injector 400 "is disposed on the second wall 513 and may be provided to inject wash water into the simple tray 450. The frame injector 400" So that it is possible to assist in washing the tableware loaded on the simple tray 450.

The foregoing has shown and described specific embodiments. However, it should be understood that the present invention is not limited to the above-described embodiment, and various changes and modifications may be made without departing from the technical idea of the present invention described in the following claims .

Claims (15)

A tub having a front opening and an upper opening; A front door configured to open and close the front opening; A cover frame disposed in the upper opening and having an opening that opens in a vertical direction; An upper door configured to open and close an opening of the cover frame; And a frame injector disposed in the cover frame to spray wash water from one side of the cover frame. The method according to claim 1, Wherein the cover frame further includes a seating portion facing a lower surface of the upper door when the upper door is closed, Wherein the frame ejector is disposed in the seating portion to remove foreign matter on the seating portion. 3. The method of claim 2, Further comprising a door hinge disposed in the seating portion such that the upper door is rotatably coupled to the cover frame, Wherein the frame ejector is disposed on the seating portion outside the hinge member with respect to the center of the tub. The method of claim 3, Wherein the frame sprayer is arranged to spray wash water toward the door hinge. 3. The method of claim 2, Wherein the upper door includes a sealing member provided on a lower surface of the upper door so as to contact the seating portion when the upper door is closed, Wherein the frame ejector is disposed outside the sealing member with respect to the center of the tub. 3. The method of claim 2, Wherein the upper door includes a sealing member provided on a lower surface of the upper door so as to contact the seating portion when the upper door is closed, Wherein the frame injection device is disposed inside the sealing member with respect to the center of the tub. The method according to claim 1, Further comprising a simple tray disposed on an inner wall of the cover frame, Wherein the frame ejecting device is arranged to be ejected toward the simple tray. The method according to claim 1, Further comprising a simple tray disposed on an inner wall of the cover frame and an auxiliary frame ejection device disposed on the cover frame and adapted to be ejected toward the simple tray. 3. The method of claim 2, Wherein the seating portion includes a collecting area provided at a relatively low height with respect to the vertical direction so that the washing water sprayed from the frame spraying device is collected at one side of the seating part. The method according to claim 1, Wherein the cover frame further comprises a drain hole for draining wash water collected on the cover frame. 11. The method of claim 10, The cover frame A lower inner wall extending from an inner end of the seat portion to the tub side and a lower inner wall extending from the inner end of the seat portion to the lower portion of the lower door to allow the wash water drained from the drain hole to flow into the tub, And a connecting hose connecting the drain hole and the inlet hole. 12. The method of claim 11, And a connecting member for connecting the upper end of the tub and the cover frame, Wherein the connection hose penetrates through the connection member to connect the drain hole and the inlet hole. 12. The method of claim 11, Wherein the connection hose includes a U-shaped U-shaped area formed to be lower than the inflow hole in a vertical direction. 12. The method of claim 11, And the drain hole is disposed in the seating portion. 11. The method of claim 10, Wherein the seat portion includes a collecting area provided at a relatively low height with respect to the vertical direction so that the washing water injected from the frame injecting device is collected toward the drain hole side.

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